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214438515814 = 21789103688013
BaseRepresentation
bin1100011110110110001…
…0000001010001100110
3202111111120220021200101
43013231202001101212
512003132230001224
6242302305334314
721330662211205
oct3075542012146
9674446807611
10214438515814
1182a40a518a6
123568703739a
13172b5736763
14a54390723c
1558a0d28044
hex31ed881466

214438515814 has 32 divisors (see below), whose sum is σ = 347749796160. Its totient is φ = 98809531392.

The previous prime is 214438515803. The next prime is 214438515827. The reversal of 214438515814 is 418515834412.

It is a super-2 number, since 2×2144385158142 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32329 + ... + 655684.

It is an arithmetic number, because the mean of its divisors is an integer number (10867181130).

Almost surely, 2214438515814 is an apocalyptic number.

214438515814 is a deficient number, since it is larger than the sum of its proper divisors (133311280346).

214438515814 is a wasteful number, since it uses less digits than its factorization.

214438515814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688224.

The product of its digits is 614400, while the sum is 46.

The spelling of 214438515814 in words is "two hundred fourteen billion, four hundred thirty-eight million, five hundred fifteen thousand, eight hundred fourteen".

Divisors: 1 2 17 34 89 103 178 206 1513 1751 3026 3502 9167 18334 155839 311678 688013 1376026 11696221 23392442 61233157 70865339 122466314 141730678 1040963669 1204710763 2081927338 2409421526 6307015171 12614030342 107219257907 214438515814